move TODOs and failing test regarding the JSON de-serializer into their
own test
rewrite storing of UUID to storing the String of UUID. Search can not
store complex objects
make IndexDocument less generic, can only store String and Long now, add
test for serializer and unserialize by hand to fix number problem
add log stmts to http calls to index server
move dependency in POMs where it is really used (avoid usage of
transitive dependencies)